DRIVEN TUNNELING WITH DISSIPATION

被引：99
作者：
DITTRICH, T
OELSCHLAGEL, B
HANGGI, P
机构：
[1] Institut für Physik Universität Augsburg, Augsburg, W-8900
来源：
EUROPHYSICS LETTERS | 1993年 / 22卷 / 01期
关键词：
D O I：
10.1209/0295-5075/22/1/002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the quantal dynamics of a harmonically driven quartic double well in the presence of dissipation. A master equation for the reduced density operator is derived in the Floquet representation. In the classical limit, this system corresponds to a Duffing oscillator with Ohmic damping. We present numerical results for the transient time evolution and for the stationary sate. The influence of the weak dissipation on interference effects in the context of driven tunnelling is discussed on the basis of these results. We find that the coherent suppression of tunnelling can be stabilized by reservoir-induced noise for a suitably chosen temperature.
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页码：5 / 10
页数：6
相关论文
共 53 条
[1]   LASER-INDUCED LOCALIZATION OF AN ELECTRON IN A DOUBLE-WELL QUANTUM STRUCTURE [J].
BAVLI, R ;
METIU, H .
PHYSICAL REVIEW LETTERS, 1992, 69 (13) :1986-1988
[2]   DYNAMIC LOCALIZATION IN THE MICROWAVE INTERACTION OF RYDBERG ATOMS - THE INFLUENCE OF NOISE [J].
BLUMEL, R ;
BUCHLEITNER, A ;
GRAHAM, R ;
SIRKO, L ;
SMILANSKY, U ;
WALTHER, H .
PHYSICAL REVIEW A, 1991, 44 (07) :4521-4540
[3]   SUPPRESSION OF CLASSICAL STOCHASTICITY BY QUANTUM-MECHANICAL EFFECTS IN THE DYNAMICS OF PERIODICALLY PERTURBED SURFACE-STATE ELECTRONS [J].
BLUMEL, R ;
SMILANSKY, U .
PHYSICAL REVIEW A, 1984, 30 (02) :1040-1051
[4]   PHOTOINDUCED MACROSCOPIC QUANTUM TUNNELING IN SUPERCONDUCTING INTERFERENCE DEVICES [J].
CHAKRAVARTY, S ;
KIVELSON, S .
PHYSICAL REVIEW LETTERS, 1983, 50 (22) :1811-1814
[5]  
CHU S, 1986, ADV CHEM PHYS, V73, P739
[6]   QUANTUM-MECHANICS OF A MACROSCOPIC VARIABLE - THE PHASE DIFFERENCE OF A JOSEPHSON JUNCTION [J].
CLARKE, J ;
CLELAND, AN ;
DEVORET, MH ;
ESTEVE, D ;
MARTINIS, JM .
SCIENCE, 1988, 239 (4843) :992-997
[7]   DESTRUCTION OF LOCALIZATION DUE TO COUPLING TO A BATH IN THE KICKED-ROTATOR PROBLEM [J].
COHEN, D .
PHYSICAL REVIEW A, 1991, 43 (02) :639-645
[8]   ISOMERIZATIONS CONTROLLED BY ULTRASHORT INFRARED-LASER PULSES - MODEL SIMULATIONS FOR THE INVERSION OF LIGANDS(H) IN THE DOUBLE-WELL POTENTIAL OF AN ORGANOMETALLIC COMPOUND, [(C5H5)(CO)2FEPH2] [J].
COMBARIZA, JE ;
JUST, B ;
MANZ, J ;
PARAMONOV, GK .
JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (25) :10351-10359
[9]   RESONANT ACTIVATION OF A BROWNIAN PARTICLE OUT OF A POTENTIAL WELL - MICROWAVE-ENHANCED ESCAPE FROM THE ZERO-VOLTAGE STATE OF A JOSEPHSON JUNCTION [J].
DEVORET, MH ;
ESTEVE, D ;
MARTINIS, JM ;
CLELAND, A ;
CLARKE, J .
PHYSICAL REVIEW B, 1987, 36 (01) :58-73
[10]   QUANTUM EFFECTS IN THE STEADY-STATE OF THE DISSIPATIVE STANDARD MAP [J].
DITTRICH, T ;
GRAHAM, R .
EUROPHYSICS LETTERS, 1987, 4 (03) :263-268
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